Mikhail Nikulin

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We present a model and semiparametric estimation procedures for analysis of survival data with cross-effects (CE) of survival functions. Finite sample properties of the estimators are analyzed by simulation. A goodness-of-fit test for the proportional hazards model against the CE model is proposed. The well known data concerning effects of chemotherapy and(More)
The effects of highly toxic and nontoxic spores of Stachybotrys atra were investigated in mice after six intranasal administrations of 1 x 10(5) and 1 x 10(3) spores in phosphate-buffered saline during a 3-week period. Toxic spores contained the trichothecene mycotoxins, satratoxins G and H, as well as the immunosuppressant stachybotrylactones and -lactams.(More)
A possibly unknown approach to the problem of finding the common term of a power series is considered. A direct formula for evaluating this common term has been obtained. This formula provides useful expressions for direct evaluation of the number of partitions of a nonnegative integer and the partitions themselves. These expressions permit easily to work(More)
  • Alexander Bochkov, Kołowrocki, Shybinsky Igor, Russia, Yuri Belyaev, Kovalenko +20 others
  • 2012
All rights are reserved The reference to the magazine "Reliability: Theory & Applications" at partial use of materials is obligatory. Theoretical papers have to contain new problems, finger practical applications and should not be overloaded with clumsy formal solutions. Priority is given to descriptions of case studies. General requirements for presented(More)
In demography, Gompertz and Makeham models have significant role in modeling and in analysis of mortality and ageing. Till the end of the 20th century, researchers have used the tables of mortalities (also called life tables) for demographic analysis but in the end of the 20th century due to the development in statistical methods of survival analysis and(More)